/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include "fd-util.h" #include "fuzz.h" #include "memory-util.h" #include "memstream-util.h" #include "resolved-dns-packet.h" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL, *copy = NULL; _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; _cleanup_(memstream_done) MemStream m = {}; FILE *f; if (outside_size_range(size, 0, DNS_PACKET_SIZE_MAX)) return 0; if (dns_resource_record_new_from_raw(&rr, data, size) < 0) return 0; fuzz_setup_logging(); assert_se(copy = dns_resource_record_copy(rr)); assert_se(dns_resource_record_equal(copy, rr) > 0); assert_se(f = memstream_init(&m)); (void) fprintf(f, "%s", strna(dns_resource_record_to_string(rr))); if (dns_resource_record_to_json(rr, &v) < 0) return 0; (void) json_variant_dump(v, JSON_FORMAT_PRETTY|JSON_FORMAT_COLOR|JSON_FORMAT_SOURCE, f, NULL); (void) dns_resource_record_to_wire_format(rr, false); (void) dns_resource_record_to_wire_format(rr, true); return 0; }